[PATCH 0/4] Extend sdhci-esdhc-imx card_detect and write_protect support for mx5
Shawn Guo
shawn.guo at freescale.com
Tue Jun 14 09:12:24 EDT 2011
On Tue, Jun 14, 2011 at 07:39:03PM +0800, Shawn Guo wrote:
> On Tue, Jun 14, 2011 at 01:13:29PM +0200, Arnaud Patard wrote:
> > Shawn Guo <shawn.guo at freescale.com> writes:
> >
> > Hi,
> >
> > > On Fri, Jun 10, 2011 at 06:42:48PM +0800, Shawn Guo wrote:
> > >> The card-present polling within sdhci based driver is very expensive
> > >> in terms of the impact to system performance. We observe a few
> > >> system performance issues from Freescale and Linaro on mx5 platforms,
> > >> which have been proved card polling related.
> > >>
> > >> The patch set extends the current sdhci-esdhc-imx card_detect and
> > >> write_protect support to cover mx5 platforms, and solves above
> > >> performance issues.
> > >>
> > >> Shawn Guo (4):
> > >> mmc: sdhci: fix interrupt storm from card detection
> > >> mmc: sdhci-esdhc-imx: SDHCI_CARD_PRESENT does not get cleared
> > >> mmc: sdhci-esdhc-imx: remove "WP" from flag ESDHC_FLAG_GPIO_FOR_CD_WP
> > >> mmc: sdhci-esdhc-imx: extend card_detect and write_protect support
> > >>
> > > Hi Arnaud,
> > >
> > > Any chance to play with it yet?
> >
> > I tried applying the patch 4 (v2) on mmc git and Sascha Hauer's for-next
> > branch and failed. Can you please tell me on which tree should I apply
> > it ?
> >
> Sascha really should not picked up the following 3 patches. They are
> nonsense when driver is not even ready for the support. These 3
> patches have conflict with my patch set. You should be able to
> apply with these 3 removed.
>
> commit 954548c68c2d478bf8ec0ca9d9eea2a7c45a4fcd
> Author: Andre Silva <andre.silva at freescale.com>
>
> ARM:mach-mx5/board-mx51_babbage: Add CD and WP GPIOs
>
> commit ba0c5064cb55aaac4cb5202ecad5afe9385139fc
> Author: Andre Silva <andre.silva at freescale.com>
>
> ARM:mach-mx5/board-mx53_loco: Add CD and WP GPIOs
>
> commit fabef7b7c62ba58604da22b6f79b7e9ad5ae8d74
> Author: Andre Silva <andre.silva at freescale.com>
>
> ARM: mach-mx5/mx53_ard: Add support for i.MX53 ARD board
>
Sascha,
Since these 3 patches are still sitting on top of your tree, would
you mind backing out them? Or you want me to do a rebase on your
tree? I'm fine with either one.
--
Regards,
Shawn
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